Kubvisirwa kweCarbon Dioxide (Co₂) Matangi ekuchengetedza haana mhosva nekuti COO mphs haagone kutungamira kumarara, asiwo kutyisidzira nharaunda uye kuchengetedzwa kwevashandi. Kunyanya mune yakavharwa kana hafu-yakavharwa nharaunda, co₂ kubhururuka kunogona kukonzera kusekerera kana kuisa dzimwe njodzi dzekuchengetedza.